Protecting Public Health and the Environment.

Hot-Mix Asphalt Plants

Because most hot-mix asphalt plants have specific pieces of permitted equipment, DEQ has created a streamlined permitting process for these operations. This permitting process includes the following steps:

1.  Contact DEQ by phone.

Prior to submitting an application for a new or modified asphalt plant, call the Air Quality Permitting Hotline at 1-877-5PERMIT (573-7648). This will put you in touch with a DEQ staff member who can answer any questions you might have about the air permitting process. At this time a pre-application meeting will be set up with DEQ staff.

2.  Attend a pre-application meeting.

The pre-application meeting may be held in person or via conference call. During this meeting a modeling protocol will be discussed. (For modeling protocol questions contact Kevin Schilling, DEQ Modeling Coordinator, at (208) 373-0112 or kevin.schilling@deq.idaho.gov). The modeling protocol will need to be developed, using DEQ’s HMAP (Hot Mix Asphalt Plant) form, prior to submission of the application package.

Prior to attending the pre-application meeting with DEQ staff, the applicant will need to review DEQ’s Modeling Setbacks document. This document provides rough estimates of the required setback distances for new asphalt plants using different operating scenarios. Reviewing this document will help the applicant decide on the appropriate operating scenario to apply for.

3.  Complete required forms.

  • Form GI: General Information
  • Form HMAP: Hot-Mix Asphalt Plant (specific information on the proposed asphalt plant)
  • Form FRA: Federal Requirements Applicability
    For form FRA, the following federal requirements should be addressed for HMA plants: NSPS Subpart I (Standards of Performance for Hot Mix Asphalt Facilities), and NSPS Subpart IIII (Standards of Performance for Stationary Compression Ignition Internal Combustion Engines) and/or NESHAP Subpart ZZZZ (National Emission Standard for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines).

4.  Submit forms and application fee.

The application fee is $1,000, which may be paid by check, credit card/E-check, or bank wire transfer.

If paying by check:

  • Make check payable to: Idaho Department of Environmental Quality
  • Send completed application and check to:
    Idaho Department of Environmental Quality
    Attn: Fiscal Office - Air Quality Program
    1410 N. Hilton
    Boise, ID 83706

If paying by credit card/E-check:

  • Send completed application to:
    Idaho Department of Environmental Quality
    Attn: Air Quality Program
    1410 N. Hilton
    Boise, ID 83706
  • To pay fees, link to Access Idaho website at
    https://www.accessidaho.org/ai/payport/online/deq/index.html
    (Note: Convenience fee of 3% applies to credit card payments, $5 to E-check payments.)

If paying by bank wire transfer:

  • Send completed application to:
    Idaho Department of Environmental Quality
    Attn: Air Quality Program
    1410 N. Hilton
    Boise, ID 83706
  • To pay fees, contact Claudia Clark, DEQ Fiscal Office
    claudia.clark@deq.idaho.gov
    (208) 373-0172

Staff Contacts

Air Quality Permitting Hotline
1-877-5PERMIT (1-877-573-7648)
Call to set up a meeting or ask air quality permitting questions.

Stationary Source Permit Program Coordinator
Bill Rogers
DEQ State Office
Air Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0437
william.rogers@deq.idaho.gov

Related Pages

Air Quality Dispersion Modeling

Air Quality Permitting Forms & Checklists

Environmental Assistance for Hot-Mix Asphalt Plants